Sakura (Yukie Nakama) is a detective who uses her listening skills to solve cases.

In the morning, Sakura listens to callers to as DJ Kokoro at a local radio station. In the afternoon, she listens to citizens' problems by working at the Community Safety Section at the Komagome Central Police Office. At night, she receives information from regulars at a restaurant run by her grandmother Ume (Mitsuko Kusabue).

When cases takes place, Sakura goes undercover to investigate. She partners with Detective Masato (Ryuta Sato) as they work to solve mysterious cases together.